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2 years ago

Jillian has made an error. In which step does it occur? Step 1 Step 2 Step 3 Step 4

Mathematics

1 answer:

Ket [755]2 years ago

4 0

Answer:

What error?

Step-by-step explanation

Can u plz label the steps?

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The derivative of a function f(x)=2-7sinx is--------

Setler [38]

Answer: -7cos(x)

Step-by-step explanation:

d/dx (f(x))= -7cos(x)

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2 years ago

The perimeter of a rectangle is 44 inches. If the width of the rectangle is four more than half the length, find the length of t

Mars2501 [29]

Answer: the length of the rectangle is 12 inches

Step-by-step explanation:

Let the length of the rectangle is x inches

Hence, the width is (x/2)+4 inches

Thus,

$\displaystyle\\2(x+(\frac{x}{2} +4))=44\\\\2x+x+8=44\\\\3x+8=44\\\\3x+8-8=44-8\\\\3x=36\\$

Divide both parts of the equation by 3:

$x=12\ inches$

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1 year ago

4x-3=5x-21 what does x=

torisob [31]

U subtract 4x by 5x and then you add 3 by -21 and the answer is x=18

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3 years ago

Convert 504 centimeters to inches por favcor please!

mash [69]

Answer:

198.425 inches

Step-by-step explanation:

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1 year ago

Read 2 more answers

A frequency table of grades has five classes (A, B, C, D,F) with frequencies of 4, 10, 17, 6, and respectively. Using percentage

fiasKO [112]

We have the frequencies for each of the grades. We can estimate the number of students graded by adding all those frequencies. Let's call N the total number of grades:

$\begin{gathered} N=4+10+17+6+2 \\ N=39 \end{gathered}$

We have then a total number of grades of 39.

The corresponding relative frequency for a grade is the ratio of the frequency to the total number of "samples", 39 in this case.

Then, for grade A, the relative frequency (RF) will be:

$RF_A=\frac{4}{39}\approx0.10256\approx10.26\text{ \%}$

This will be the fraction of the total grades that are A. Represented as a percentage will be 10.26%, rounded to two decimal places.

Now, to complete the table we do the same for the other frequencies:

For grade B:

$RF_B=\frac{10}{39}\approx0.2564\approx25.64\text{ \%}$

For grade C:

$RF_C=\frac{17}{39}\approx0.4359\approx43.59\text{ \%}$

For grade D:

$RF_D=\frac{6}{39}\approx0.1538\approx15.38\text{ \%}$

For grade F:

$RF_D=\frac{2}{39}\approx0.0513\approx5.13\text{ \%}$

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11 months ago